From 57f0f512b273f60d52568b8c6b77e17f5636edc0 Mon Sep 17 00:00:00 2001
From: André Fabian Silva Delgado <emulatorman@parabola.nu>
Date: Wed, 5 Aug 2015 17:04:01 -0300
Subject: Initial import

---
 arch/sparc/prom/cif.S | 47 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)
 create mode 100644 arch/sparc/prom/cif.S

(limited to 'arch/sparc/prom/cif.S')

diff --git a/arch/sparc/prom/cif.S b/arch/sparc/prom/cif.S
new file mode 100644
index 000000000..8050f381f
--- /dev/null
+++ b/arch/sparc/prom/cif.S
@@ -0,0 +1,47 @@
+/* cif.S: PROM entry/exit assembler trampolines.
+ *
+ * Copyright (C) 1996, 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
+ * Copyright (C) 2005, 2006 David S. Miller <davem@davemloft.net>
+ */
+
+#include <asm/pstate.h>
+#include <asm/cpudata.h>
+#include <asm/thread_info.h>
+
+	.text
+	.globl	prom_cif_direct
+prom_cif_direct:
+	save	%sp, -192, %sp
+	sethi	%hi(p1275buf), %o1
+	or	%o1, %lo(p1275buf), %o1
+	ldx	[%o1 + 0x0008], %l2	! prom_cif_handler
+	mov	%g4, %l0
+	mov	%g5, %l1
+	mov	%g6, %l3
+	call	%l2
+	 mov	%i0, %o0		! prom_args
+	mov	%l0, %g4
+	mov	%l1, %g5
+	mov	%l3, %g6
+	ret
+	 restore
+
+	.globl	prom_cif_callback
+prom_cif_callback:
+	sethi	%hi(p1275buf), %o1
+	or	%o1, %lo(p1275buf), %o1
+	save	%sp, -192, %sp
+	TRAP_LOAD_THREAD_REG(%g6, %g1)
+	LOAD_PER_CPU_BASE(%g5, %g6, %g4, %g3, %o0)
+	ldx	[%g6 + TI_TASK], %g4
+	call	prom_world
+	 mov	0, %o0
+	ldx	[%i1 + 0x000], %l2
+	call	%l2
+	 mov	%i0, %o0
+	mov	%o0, %l1
+	call	prom_world
+	 mov	1, %o0
+	ret
+	 restore %l1, 0, %o0
+
-- 
cgit v1.2.3-54-g00ecf